Filling clamping and parting means for looms



A. E. HHOADES. v FILLING CLAMPING AND PARTING MEANS FOR LOOMS.

- APPLICATION FILED AUG.23, 192i.

nveflor. Alongo En Rhkmdes byMWArJQ-M Anya Patented Aug. 29, 1922.

uuirso STATES PATENT creme.

ALONZO E. RI-IOADES, 01? EOPEDALE, MASSACHUSETTS, ASSIGNOR TODRAPERCORPO- RATION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OFiMAINE.

FILLING CLAMLPING AND PARTING MEANS FOR LOOIES.

Specification of Letters Patent. Patented Aug. 29, 1922.

Application filed August 23, 1921. Serial No. 494,526.

T 0 all whom it may concern:

Be it known that I, ALoNzo E. RHoAons, a citizen of the United States,resident of Hopedale, county of Worcester, State of Massachusetts, haveinvented an Improvement in Filling Clamping and Parting Means for Looms,of which the following description, in connection with the accompanyingdrawing, is a specification, like characters on the drawing representinglike parts.

This invention relates to automatic filling replenishing looms in whicha mechanism is provided to clamp and part adjacent the end of theshuttle the filling extending from the selvage of the cloth being wovento the filling carrier about to be abandoned.

' The object of the invention is to provide a simple and efiicient meansfor effecting the closing'movement of this filling clamping and partingmechanism;

, The object of the invention is further to providesuch a closing meansoperable only upon the actuation of the transferring means by which afresh filling carrier is transferred from'the magazine or supply to thelay so that there will be no danger of the running filling being severeduntil and unless an actual operation of the transferring means takesplace.

The object of the invention is further to provide such a closing meansas will render unnecessary extreme accuracy in the assem bly andadjustment of the filling clamping and parting mechanism and as willgive or yield upon the occurrence of any abnormal resistance to theoperation of the parts.

These and other objects and features of the invention will appear morefully from the accompanying description and drawings andwill beparticularly pointed out in the claims.

In the drawings:

Fig. 1 is a view in vertical cross section I looking toward the insideof the transfer end of the loom with only such portions of the mechanismshown as is necessary to a disclosure of the present invention.

' Fig. 2 is a detail in plan and partially in horizontal cross sectionshowing the parts attached to the loom in the preferred form of theinvention.

The automatic filling replenishing loom illustrated is of the well knownNorthrop -type and as the construction and operation of thistype of loomis familiar to those skilled 1n the art, it is unnecessary to illustrateor describe anything more than those parts particularly concerned withthe present invention. So, also, the filling clamping and parting meansillustrated is of a Well known and familiar type and for the same reasonneeds no detailed illustration or descriptlon.

In this type of loom the frame, one side of which 1 is illustrated,supports at the front the usual breast beam 2 and upon this frame swingsthe lay 3. The shuttle 4 is picked back and forth across the lay and isshown boxed at the transfer side of the loom. Upon this side of the loomis mounted the hopper or magazine 5' which carries the supply of freshfilling carriers one of which is illustrated as a'bobbin6 ready fortransfer into th shuttle boxed therebeneath. Transfer is effected inthis type of 100111 by a'transferrer arm 7 having a hub 8 journaled on astud 9 mounted in the stand of the magazine 5 by which it is secured tothe breast beam 2.

When the running filling in the shuttle weaving the cloth has becomesubstantially exhausted, suitable and familiar mechanism forming no partof the present invention indicates the substantial exhaustion of thefilling and through suitable connections rocks a rod or shaft 11extending along the front of the loom frame. This shaft has projectingrearwardly therefrom an arm '12 engaging at its rearward end a stud 13on a swinging shuttle feeler lt'pivoted on the frame at 15. This shuttlefeeler is arranged to swing across the path of the shuttle if it isproperly boxed ready for transfer, but if the shuttle is not properlyboxed, then the shuttle feeler strikes the shuttle and the completion ofits swinging movement is prevented. Theshuttle feeler has a slottedprojection 16 cooperating with the stud 17 on a dog 18 pivoted to an arm19 depending from the transferrer arm hub 8.

It will therefore be seen that upon the call for filling replenishment,thestarter rod 11 being rocked, the arm 12' is raised, the shuttlefeeler 14 is swung rearwardly and if the shuttle is properly boxed thedog 18 is elevated into the path of a hunter 20 on the lay.Consequently, as the lay beats up, the transferrer arm 7 is swungdownwardly transferring the fresh filling carrier into the shuttle onthe lay and ejecting from the shuttle the substantially exhaustedfilling carrier. If, however, the shuttle is not properly boxed, theshuttle feeler strikes against it and consequently the movement of theparts is not sufficient to bring the dog 18 op-' posite thebunter 20 andtherefore no transfer takes place. All of this 1nechanisin,constructionand operation, is familiar to those skilled in the art.

The filling'extending from the selvage to the filling carrier to beabandoned must be severed and it is customary to sever it adjacent theend of the shuttle and again close to. the selvage. For the formerpurpose a filling clamping and parting mechanism is provided and iscommonly mounted on the shuttle feeler which affords a convenientsupport. In the form illustrated this filling clamping and partingmechanism consists simply of a pair of fixed blades 21 secured to theupper end of the shuttle feeler and a movable blade 22 mounted betweenthe fixed blades on a pivot The movable blade 22 is shown'asswingingupwardly at its efiective end to clamp and part the filling andconsequently it may be swung to operative position by a downwardpressure on its forward end 24. A pin 25 mounted in the shuttle feelerand projecting through a hole 26 in the movable blade limits the extentof the The movclosing movement of the blade. able blade is also providedat its forward end with a transversely extending pin'27 which incooperation with the switch cam 28 pivoted at 29 on the bracket arm 30effects the opening movement of the blade in a generally familiarmanner.

'In the normal position the partsstand in position indicated in fulllines in Fig. 1, the

blades 21 andv22 holding the severed filling end of the filling carrierlast abandoned: Upon the call for filling replenishment, the shuttlefeeler swings rearwardly, as already described, and the pin 27 riding upthe for ward side of the switch cam 28 swings'the movable blade 22 toopen position and the filling end held thereby drops out. The parts thenswingforwardly to the position indicated in dotted lines-if the shuttleis properly boxed and the filling extending to the filling carrier aboutto be abandoned enters between the blades; The movable blade mustnow beclosed in order to clamp and part the filling end close to the shuttleand so' that this fillin end extending to the selvage' maybecarried'forward out of the way and brought into the path of the usualtemple thread cutter whereby it is severed closeto the selvage. Thisclosing movement the present invention is efiiected by means connectedwith thetransferrer arm so that there can be no severance of the fillingunlessthetrausferrinjg mechanism is actuated.

It will also be noted that the movable blade must not move in itsclosing movement beyond a certain point or there will be danger ofbreaking or shearing off the pin 25. It is notan easy matter to assembleall the parts of the shuttle feeler, filling clamping andparting"mechanism and to adjust these parts with respect to the lay sothat accuracy of the closing movement of the filling clamping andparting means under all conditions can be maintained. One feature of theinvention consists in providing a yielding or give-fivay'f-eature in themeans for closing the filling clamping and parting means so that underall conditions the proper closing movement may be effected and thenfurther movement taken up by the yielding or give-way feature. Thus, notonly is it unnecessary to adjust the parts with absolute accuracy butalso if for any reason, any abnormal resistance occurs to the movementof the parts, this yielding or give-way feature prevents damage orbreakage.

The closing means provided for this'purpose-in the preferred formillustrated comprises a bracket 31 bolted at 32 to the hub 8 of thetransferrer arm and extending around the'magazine stand 10. At its innerend this bracketisprovided with alaterally projecting stud 33' on whichis journaled an actuator in the form of a hub 34; 'having'a rigid arm 35projecting rearwa-rdlyand provided with a rounded end 36 standing.directly over the forward end 24 of the movable blade when the fillingclamping and parting means is in its'rearward or operative position. Ahelical spring 37 surrounds the stud 33 in a recess in the hub 34 and isconnected at one end to the bracket31 andat the other end to the hub 34and acts normally to hold a lug 38 projecting rearwardly from the hubagainst a lug 39 projecting from the bracket 31. This spring is ofsufiicient strength to cause the arm 35 to movewith the transferrer armandeifect'the closing movement of the filling clamping and parting meansbut is so tensioned'as to'allow the arm 35 to yield and the lugs 38 and39 to separate if there is any abnormal resistance to the operation ofthe fillingclam-ping and parting means or other parts or if the movableblade comes in contact with the pin 25 before the movement of thetransferrer arm has been completed.

It will therefore be seen that when the filling clamping and partingmeans, has moved to its rearward or operative position as the laycompletes its beat=up and the hunter 20 strikes the dog 18, thetransferrer arm 7 is swung downwardly carrying with'it the bracket 31and the arm 35 so that the end 36 of the' arm strikes the end 24: of themovable blade and swings it to closing positiemthe arm 35 thereafteryielding if necessary; Thus, -v the closing movement Of the fillingclamping and parting means is accurately and surely effected and onlywhen the transferring mechanism is actually operated.

After transfer has been effected, the shuttle feeler swings forwardly inthe usual manner and the pin 27 sliding down the front face of the cam28 raises that cam about its pivot 29 and passes beneath the cam whichthen drops behind it to the position shown in full lines, Thus, theclamped and parted filling end is carried back and held in position tobe severed close to the selvage by the usual temple thread cutter.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. An automatic filling replenishing loom comprising a magazine tocontain a supply of fresh filling-carriers, a pivotally mountedtransferrer arm acting when actuated to swing downwardly and transfer afresh filling carrier from the magazine to the lay, a shuttle feelermovable toward and from the lay and acting when moved to its rearwardposition to effect the actuation of the blade mounted on the bracket andmeans permitting the actuator arm to yield upwardly and turn on itspivotal mounting upon the occurrence of any abnormal resistance, thesaid actuator arm, upon the actuation of the transferrer arm, strikingthe movable blade and moving it to closed position.

2. An automatic filling replenishing loom comprising the constructiondefined in claim 1 in which the bracket and the actuator are providedwith co-operating stop lugs and in which a spring connects the bracketand the actuator and acts to hold the said lugs in engagement butpermits the upward yielding of the actuator with respect to the bracket.

In testimony whereof, I have signed my name to this specification.

ALONZO E. RHOADES.

